Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451327 | Skin cleansing composition | Masaaki Moriyama, Hiroe Tanahashi, Tomoko Umezawa, Hideyuki Hanazawa | 2002-09-17 |
| 5856284 | Detergent composition including a glycerol derivative, a polyhydric alcohol, and an amphoteric surfactant | Hirokazu Hamada, Masaki Itabashi | 1999-01-05 |
| 5681804 | Detergent composition | Hirokazu Hamada, Masaki Itabashi | 1997-10-28 |
| 5496492 | Detergent composition | Hirokazu Hamada, Masaki Itabashi | 1996-03-05 |